VIDEO: The final seconds before girl accidentally killed shooting instructor with an Uzi

Veteran Charles Vacca can be seen giving careful instructions to the unnamed girl at the Bullets and Burgers shooting range in Dolan Springs, Arizona, before the unexpected recoil from the weapon saw her shoot him in the head.

The 39-year-old instructor was rushed to the University Medical Center in Las Vegas but died shortly after arriving – just the latest casualty of America's lax gun laws.

Authorities said the girl was at the shooting range with her parents – who are the ones believed to have been filming the video before tragedy struck.

After letting the girl fire off a shot, Vacca adjusts the gun before saying to her: "All right, full auto."

Seconds later he had been struck multiple times at point-blank range.

The Uzi is a sub-machine gun that can loose off up to 10 bullets PER SECOND, which is why Vacca stood no chance of survival.

TRAGEDY [YOUTUBE]

“You can't give a 9-year-old an Uzi and expect her to control it”

Firearms safety expert Ronald Scott

The shooting range has refused to comment on the incident and it is unclear whether there is an age limit or if the girl was going through a safety class.

Firearms safety expert Ronald Scott said most shooting ranges do have an age limit and strict safety rules when teaching children to shoot.

He said instructors usually have their hands on guns when children are firing high-powered weapons, adding: "You can't give a nine-year-old an Uzi and expect her to control it."

The video, released by authorities, cuts off before the shooting but Mohave County Sheriff Jim McCabe said the full clip of the incident was "ghastly".

VETERAN: Charles Vacca was pronounced dead at hospital [FACEBOOK]

He added to Fox News: "The guy just dropped.

"It's so easy for us to go back and look at something that's very tragic and say, 'Boy! Why did that occur? That should not have happened because of...'

"Well, maybe from now on, that 'because of' will be in place."

The girl in the video, who was passing through the area with her parents on a holiday from New jersey, was uninjured.

Bullets and Burgers will not be charged over the incident as it is fully licensed and legal.

Their website advertises that guests can "shoot FULL auto on our machine guns. Let 'em Rip!"